Re: [Xen-devel] arm64: Approach for DT based NUMA and issues

[Julien Grall <julien.grall@xxxxxxx>]

Hi Dario,

On 28/11/16 12:30, Dario Faggioli wrote:
> On Mon, 2016-11-28 at 16:32 +0530, Vijay Kilari wrote:
> > On Mon, Nov 28, 2016 at 2:21 AM, Dario Faggioli
> > <dario.faggioli@xxxxxxxxxx> wrote:
> > > That makes perfect sense to me, and FWIW, is also what I'd do. In
> > > fact,
> > > the whole point of what I was saying was not to confuse Xen NUMA
> > > support and Dom0 NUMA support; if we want to do both of them, the
> > > latter right after the former, fine, but they're separate things
> > > indeed.
> >   Yes, agreed. Whatever the existing Xen NUMA-Aware code is
> > completely kept
> > under x86, which can be used for arm as well. So needs cleanup and
> > make common
> > for both archs.
> Sure.
>
> >   Regarding Dom0 NUMA-aware, in arm Dom0 is completely not NUMA-
> > aware, not even
> > to the extent supported in x86.
> Well, Dom0 is ~0% NUMA aware on x86. But it's not important whose Dom0
> is _less_ NUMA aware. What I (and also Julien, AFAICT) am talking about
> is that we should start make Xen NUMA aware for ARM, before looking at
> Dom0.
I totally agree with this sentence. Let's focus on making Xen NUMA-aware 
first.
Regards,

--
Julien Grall

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